The seepage velocity and penetrability coefficient appeared changing of the"Z"shape with the increase of the effective axial feed when the confining pressure and gas pressure were constants.
在恒定围压和瓦斯压力的情况下，软分层煤样的瓦斯渗流速度和渗透系数均随着有效轴向压力的增大而呈“Z”形变化；
The other is the 'Z' shape inspection along the radial direction.
另一种方式是沿径向呈“Z”字形进行扫查。
The machine is mainly used for bending various metal wire, such as steel wire, stainless steel wire, etc., into "wave" shape, "zigzag" shape and "z" shape.
该机器主要用于将各种金属丝，金属线，如铁线，不锈钢线等，加工成“波浪形”，“锯齿形”，或者“之”及“Z”字形。
The machine is mainly used for bending various metal wire, such as steel wire, stainless steel wire, etc., into "wave" shape, "zigzag" shape and "z" shape.
该机器主要用于将各种金属丝，金属线，如铁线，不锈钢线等，加工成“波浪形”，“锯齿形”，或者“之”及“Z”字形。
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